using MediaBrowser.Controller.Configuration;
using MediaBrowser.Controller.Drawing;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Audio;
using MediaBrowser.Controller.MediaInfo;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.IO;
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Providers.MediaInfo
{
///
/// Uses ffmpeg to create video images
///
public class AudioImageProvider : IDynamicImageProvider, IHasChangeMonitor
{
private readonly IIsoManager _isoManager;
private readonly IMediaEncoder _mediaEncoder;
private readonly IServerConfigurationManager _config;
public AudioImageProvider(IIsoManager isoManager, IMediaEncoder mediaEncoder, IServerConfigurationManager config)
{
_isoManager = isoManager;
_mediaEncoder = mediaEncoder;
_config = config;
}
///
/// The null mount task result
///
protected readonly Task NullMountTaskResult = Task.FromResult(null);
///
/// Mounts the iso if needed.
///
/// The item.
/// The cancellation token.
/// Task{IIsoMount}.
protected Task MountIsoIfNeeded(Video item, CancellationToken cancellationToken)
{
if (item.VideoType == VideoType.Iso)
{
return _isoManager.Mount(item.Path, cancellationToken);
}
return NullMountTaskResult;
}
public IEnumerable GetSupportedImages(IHasImages item)
{
return new List { ImageType.Primary };
}
public Task GetImage(IHasImages item, ImageType type, CancellationToken cancellationToken)
{
var audio = (Audio)item;
// Can't extract if we didn't find a video stream in the file
if (!audio.HasEmbeddedImage)
{
return Task.FromResult(new DynamicImageResponse { HasImage = false });
}
return GetVideoImage((Audio)item, cancellationToken);
}
public async Task GetVideoImage(Audio item, CancellationToken cancellationToken)
{
var stream = await _mediaEncoder.ExtractImage(new[] { item.Path }, InputType.File, true, null, null, cancellationToken).ConfigureAwait(false);
return new DynamicImageResponse
{
Format = ImageFormat.Jpg,
HasImage = true,
Stream = stream
};
}
public string Name
{
get { return "Embedded Image"; }
}
public bool Supports(IHasImages item)
{
return item.LocationType == LocationType.FileSystem && item is Audio;
}
public bool HasChanged(IHasMetadata item, DateTime date)
{
return item.DateModified > date;
}
}
}